IOS 11.2.1 Xcode 9.2 BoringSSL SSL_ERROR_ZERO_RETURN (6)

Question

I unexpectedly find this error in my project, where WKWebView displays the page. The page loads as before. But now, when I try to go to another page from this page, I get this error:

[BoringSSL] Function boringssl_session_errorlog: line 2871 [boringssl_session_read] SSL_ERROR_ZERO_RETURN(6): operation failed because the connection was cleanly shut down with a close_notify alert

This seems to be related to my computer / device, as I have never done this before.

A few things I found said that I need to make sure that I have another related flag set to -ObjC. In addition, the parameter "Allow arbitrary loads" is set to "Yes". Both of them are installed, and the error continues.

The webpage uses TLS 1.2.

Answer 1

.

CFNetwork ​​ Foundation s. ( ) CFNETWORK_DIAGNOSTICS.

CFNetwork :

setenv("CFNETWORK_DIAGNOSTICS", "3", 1);

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. main , ++, CFNetwork, .

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_{* : Swift setenv.}

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↳ CFNetwork